Massachusetts and New Hampshire Siding Replacement
Your siding installation isnāt just about aesthetics. Itās also about keeping your home sealed off, properly insulated, and shielded from Mother Natureās harshest elements: wind, hail, water, ice, snow, and sun. At OāSullivan Installs, we understand that good replacement siding has to perform a variety of functions, and we offer the highest-quality products to protect your home!


Vinyl Siding
Of all the most common and popular siding options across NH and MA, vinyl tends to be the most budget-friendly material. Because Alside vinyl siding never peels, rots, or requires repainting, itās a long-term investment with minimal upkeep required.
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Engineered Wood Siding
Like the name suggests, engineered wood looks like natural woodgrain but offers the many superior benefits of a specially crafted composite. You can enjoy the warmth and sophistication of woodāonly in a material thatās much stronger, safer, and more pest resistant.
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Fiber Cement Siding
James HardieĀ® Fiber Cement siding helps enhance your home with increased curb appeal, energy efficiency, and overall durability. Protect Your Home MA and NH home with the durable and beautiful Fiber Cement Siding from James HardieĀ®.
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Lifetime Warranty Guarantee
We stand behind our work, so we offer a warranty on all our products and services.
Winterize Your Home Before It's Too Late
Winter is fast approaching and with that comes harsh weather. Ensure your home is protected with a FREE home energy inspection from O'Sullivan Installs.
Our Five-Star Siding Replacement Options
We Focus on Your Ideas
We may be siding experts, but youāre the expert of your home! Weāll listen to you and put your wants and needs first.
Weāre Award Winning
Weāve earned a number of major awards since 2008, including the Angieās List āSuper Service Awardā for 10+ years in a row.
We Offer Top Warranties
Thanks to our highly acclaimed brand partners, weāre able to offer lifetime manufacturer warranties on our siding.
View Our Portfolio of Vinyl and Engineered Wood Siding Installations
Whichever house siding material you prefer, you can always expect personalized curb appeal from OāSullivan Installs. See some examples of our stunning siding replacement projects below.
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